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相关概念视频

Induced Pluripotent Stem Cells01:13

Induced Pluripotent Stem Cells

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Stem cells are undifferentiated cells that divide and produce different types of cells. Ordinarily, cells that have differentiated into a specific cell type are post-mitotic—that is, they no longer divide. However, scientists have found a way to reprogram these mature cells so that they “de-differentiate” and return to an unspecialized, proliferative state. These cells are also pluripotent like embryonic stem cells—able to produce all cell types—and are therefore...
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In Vitro Generation of Somite Derivatives from Human Induced Pluripotent Stem Cells
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用多能干细胞建模人类体中皮层发育模型.

Yuchuan Miao1,2, Margarete Diaz-Cuadros1,3, Olivier Pourquié1,2,4

  • 1Department of Genetics, Harvard Medical School, Boston, MA, USA.

Methods in molecular biology (Clifton, N.J.)
|October 16, 2023
PubMed
概括

人类多能干细胞是早期胚胎发育的模型. 新的协议揭示了对细分时钟和体质发生的洞察力,推动了发育生物学研究.

关键词:
有针对性的差异化.人类发展 人类发展有机器人机器人机器人机器人帕拉克西亚性中皮层.多能干细胞是一种多能干细胞.索米特 (Somite) 是一种有机物.索米托基尼斯 (Somitogenesis) 是一种体质的产生.分段时钟的分段时间.

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Patterning the Geometry of Human Embryonic Stem Cell Colonies on Compliant Substrates to Control Tissue-Level Mechanics

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科学领域:

  • 发展生物学 发展生物学
  • 干细胞生物学 干细胞生物学
  • 遗传学 遗传学 是一个

背景情况:

  • 在脊椎动物的体型规划中,向索米特分离的paraxial mesoderm是至关重要的.
  • 分段时钟,一个振荡的基因调节网络,控制着节奏的形形成.
  • 研究人类体质生成是具有挑战性的,因为胚胎的获取有限和道德约束.

研究的目的:

  • 开发体外模型来研究人类的体中皮的发育.
  • 为了研究人类细分时钟的动态.
  • 用人类多能干细胞衍生模型,概括索米托生成的关键特征.

主要方法:

  • 建立了一个2D细胞单层系统来建模人类细分时钟.
  • 开发了一种3D有机体系统 ("somitoid"),用于同时形成类似索米特的结构.
  • 创建了另一种有机体系统 ("细分体") 以复制体内类似的体质生成特征.

主要成果:

  • 2D系统成功地重复了人类细分时钟的动态.
  • 这种"somitoid"器官体显示出同时形成的类似于索米特的结构.
  • "细分体"有机体在体内表现出类似于体质发生的特征.

结论:

  • 使用人类多能干细胞的互补的体外模型系统推动了对体质生成的研究.
  • 这些模型提供了一个强大的平台来解码人类发育生物学过程.
  • 开发的协议促进了对早期人类胚胎发育的研究.